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57513907 = 1117457673
BaseRepresentation
bin1101101101100…
…1011110110011
311000020000020201
43123121132303
5104210421112
65412420031
71265601013
oct333313663
9130200221
1057513907
112a513060
1217317617
13bbb94c9
1478d1c43
1550b1257
hex36d97b3

57513907 has 16 divisors (see below), whose sum is σ = 66677472. Its totient is φ = 49029120.

The previous prime is 57513901. The next prime is 57513913. The reversal of 57513907 is 70931575.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (57513901) and next prime (57513913).

It is a cyclic number.

It is not a de Polignac number, because 57513907 - 211 = 57511859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57513901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85123 + ... + 85795.

It is an arithmetic number, because the mean of its divisors is an integer number (4167342).

Almost surely, 257513907 is an apocalyptic number.

57513907 is a deficient number, since it is larger than the sum of its proper divisors (9163565).

57513907 is a wasteful number, since it uses less digits than its factorization.

57513907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1158.

The product of its (nonzero) digits is 33075, while the sum is 37.

The square root of 57513907 is about 7583.7923890360. The cubic root of 57513907 is about 386.0032461449.

The spelling of 57513907 in words is "fifty-seven million, five hundred thirteen thousand, nine hundred seven".

Divisors: 1 11 17 187 457 673 5027 7403 7769 11441 85459 125851 307561 3383171 5228537 57513907